Shizuka vanishes into a book because Nobita was careless, and the only way to save her is to jump into a story he's already lost. The crew has to navigate actual Arabian Nights mythology, improvise through a narrative that doesn't owe them anything, and somehow convince a world full of gods and monsters to let one girl go home. This is Doraemon at his most useful, which means watching a robot and a bumbling kid become the only thing standing between a friend and being trapped in someone else's story forever.
Nobita discovers magical shoes that let him and his friends jump straight into the worlds of their favorite storybooks. When he loans them to Shizuka so she can explore a tale of adventure, she vanishes into a classic Sinbad adventure. Before anyone can follow her in, Nobita's mother burns his entire book collection in a fit of cleaning house. Now Nobita, Doraemon, and their friends face an impossible situation: Shizuka is trapped in a fictional world with no way back, and the book that could lead them to her is nothing but ash. The group must find an alternative route into the Arabian nights setting to rescue her. What starts as a simple lending mistake becomes an urgent adventure across deserts, through ancient palaces, and past legendary monsters. The film balances comedy with genuine stakes as the kids scramble through both the fantastical realm and reality, discovering that even the best-laid plans can crumble in seconds. It's equal parts heartfelt and hilarious, following a band of friends willing to cross impossible boundaries for one of their own.